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SRX240H2 - ARP Issues - Separate VLANs on Multi-NIC Server

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  • 1.  SRX240H2 - ARP Issues - Separate VLANs on Multi-NIC Server

    Posted 01-20-2018 14:10

    Hello,

    I have a server with two NICs and two ip addresses on separate VLANs and separate subnets that don't overlap.  Each NIC has a separate interface on the Juniper SRX240H2.

     

    eth0 is setup on 172.16.2.0/24 with ip address 172.16.2.2 and gateway 172.16.2.1 and connected to ge-0/0/14 on vlan2

    eth1 is setup on 172.16.3.0/24 with ip address 172.16.3.2 and gateway 172.16.3.1 and connected to ge-0/0/15 on vlan4

     

    i only have a default route setup for eth1 which is 172.16.3.1 and associated with my Juniper MAC address - (made up) dc:38:e1:27:44:44.

    when i look at the arp entries eth0 is incomplete because it can't have the same mac address association with a different IP on the same server.  I can ping 172.16.2.1 but the server doesnt know how to send it back to the juniper interface on ge-0/0/14 on vlan2.  I can ping 172.16.3.1 fine and all traffic goes out there by default because the gateway is defined in my server routing table and the ARP entry exists.  I have tried source based routing with iproute2 on the server, but the only trouble I have is pinging ge-0/0/14 or 172.16.2.1.

     

    How do I make my server send traffic out eth0 when it is sent to the eth0 address and send traffic out eth1 when it is sent to eth1 if the MAC address is the same on ge-0/0/14 and ge-0/0/15?  Is there a way to make a fake MAC address for ge-0/0/14?

     

    Please let me know if you need more configuration information.  The server is a debian box.

     

     



  • 2.  RE: SRX240H2 - ARP Issues - Separate VLANs on Multi-NIC Server

     
    Posted 01-21-2018 04:19

    Junos generates a different mac address for every interface and sub-interface on the SRX.

     

    Are you saying the server sees the same mac address for two different SRX interfaces?

     

    use show interface extensive for each one and look at the Hardware Address to verify what mac address is assigned in Junos to each sub interface with the ip address assigned in the subnet of your server.

     



  • 3.  RE: SRX240H2 - ARP Issues - Separate VLANs on Multi-NIC Server

    Posted 01-21-2018 10:57

    So it looks like for some reason vlan.2 and vlan.4 members (my server on both NICs) are picking up the MAC address for vlan physical or vlan.1 logical.  It looks like all of the vlans are pulling the mac address into them (vlans1-4) for all of the gateways on the interfaces i have setup to my wireless access points, another juniper switch, and clients/servers from vlan/vlan1. ???

     

    My server output for arp -a shows the IP address associated with dc:38:e1:22:44:28 instead of the ones on ge-0/0/14 and ge-0/0/15.

    arp -a

    ? (172.16.3.1) at dc:38:e1:22:44:28 [ether] on eth1

     

    This is another subnet i have where a client is connected to my Ruckus Access Point.

     

    C:\>arp -a

    Interface: 192.168.2.3 --- 0x5
      Internet Address      Physical Address      Type
      192.168.2.1           dc-38-e1-22-44-28     dynamic
      224.0.0.22            01-00-5e-00-00-16     static
      239.255.255.250       01-00-5e-7f-ff-fa     static
      255.255.255.255       ff-ff-ff-ff-ff-ff     static


    Physical interface: vlan, Enabled, Physical link is Up
      Interface index: 133, SNMP ifIndex: 506, Generation: 136
      Type: VLAN, Link-level type: VLAN, MTU: 1518, Clocking: Unspecified, Speed: 2000mbps
      Device flags   : Present Running
      Link type      : Full-Duplex
      Physical info  : Unspecified
      CoS queues     : 8 supported, 8 maximum usable queues
      Hold-times     : Up 0 ms, Down 0 ms
      Current address: dc:38:e1:22:44:28, Hardware address: dc:38:e1:22:44:28
      Alternate link address: Unspecified
      Last flapped   : 2018-01-21 09:14:10 GMT-6 (22:53:25 ago)
      Statistics last cleared: Never
      Traffic statistics:
       Input  bytes  :            334985086                60952 bps
       Output bytes  :           4789899141              1060152 bps
       Input  packets:              2408905                   79 pps
       Output packets:              4269342                  108 pps
      Egress queues: 8 supported, 4 in use
      Queue counters:       Queued packets  Transmitted packets      Dropped packets
        0 best-effort              4269160              4269160                    0
        1 expedited-fo                   0                    0                    0
        2 assured-forw                   0                    0                    0
        3 network-cont                 183                  183                    0
      Queue number:         Mapped forwarding classes
        0                   best-effort
        1                   expedited-forwarding
        2                   assured-forwarding
        3                   network-control
      Input errors:
        Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0, Policed discards: 8169,
        Resource errors: 0
      Output errors:
        Carrier transitions: 0, Errors: 0, Drops: 0, MTU errors: 0, Resource errors: 0

      Logical interface vlan.1 (Index 69) (SNMP ifIndex 548) (Generation 134)
        Flags: SNMP-Traps 0x0 VLAN-Tag [ 0x8100.3 ]  Encapsulation: ENET2
        Bandwidth: 0
        Traffic statistics:
         Input  bytes  :            313004057
         Output bytes  :           4723840517
         Input  packets:              2305696
         Output packets:              4175316
        Local statistics:
         Input  bytes  :                77414
         Output bytes  :               579930
         Input  packets:                  966
         Output packets:                11893
        Transit statistics:
         Input  bytes  :            312926643                33568 bps
         Output bytes  :           4723260587              1019984 bps
         Input  packets:              2304730                   67 pps
         Output packets:              4163423                   85 pps
        Security: Zone: Home
        Allowed host-inbound traffic : bootp bfd bgp dns dvmrp igmp ldp msdp nhrp ospf pgm pim rip
        router-discovery rsvp sap vrrp dhcp finger ftp tftp ident-reset http https ike netconf ping
        reverse-telnet reverse-ssh rlogin rpm rsh snmp snmp-trap ssh telnet traceroute xnm-clear-text
        xnm-ssl lsping ntp sip r2cp webapi-clear-text webapi-ssl
        Flow Statistics :
        Flow Input statistics :
          Self packets :                     2459
          ICMP packets :                     3041
          VPN packets :                      0
          Multicast packets :                1519
          Bytes permitted by policy :        255441875
          Connections established :          44483
        Flow Output statistics:
          Multicast packets :                0
          Bytes permitted by policy :        3931842743
        Flow error statistics (Packets dropped due to):
          Address spoofing:                  0
          Authentication failed:             0
          Incoming NAT errors:               0
          Invalid zone received packet:      0
          Multiple user authentications:     0
          Multiple incoming NAT:             0
          No parent for a gate:              0
          No one interested in self packets: 0
          No minor session:                  0
          No more sessions:                  0
          No NAT gate:                       0
          No route present:                  1482
          No SA for incoming SPI:            0
          No tunnel found:                   0
          No session for a gate:             0
          No zone or NULL zone binding       0
          Policy denied:                     0
          Security association not active:   0
          TCP sequence number out of window: 0
          Syn-attack protection:             0
          User authentication errors:        0
        Protocol inet, MTU: 1500, Generation: 148, Route table: 0
          Flags: Sendbcast-pkt-to-re
          Addresses, Flags: Is-Preferred Is-Primary
            Destination: 192.168.1/24, Local: 192.168.1.1, Broadcast: 192.168.1.255, Generation: 142

     

    Physical interface: ge-0/0/14, Enabled, Physical link is Up
      Interface index: 148, SNMP ifIndex: 527, Generation: 151
      Link-level type: Ethernet, MTU: 1514, Link-mode: Full-duplex, Speed: 1000mbps, BPDU Error: None,
      MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Flow control: Disabled,
      Auto-negotiation: Enabled, Remote fault: Online
      Device flags   : Present Running
      Interface flags: SNMP-Traps Internal: 0x0
      Link flags     : None
      CoS queues     : 8 supported, 8 maximum usable queues
      Hold-times     : Up 0 ms, Down 0 ms
      Current address: dc:38:e1:22:44:26, Hardware address: dc:38:e1:22:44:26
      Last flapped   : 2018-01-21 11:03:27 GMT-6 (21:04:07 ago)
      Statistics last cleared: Never
      Traffic statistics:
       Input  bytes  :                17182                    0 bps
       Output bytes  :                23504                    0 bps
       Input  packets:                  249                    0 pps
       Output packets:                  270                    0 pps
      Input errors:
        Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 0, L3 incompletes: 0,
        L2 channel errors: 0, L2 mismatch timeouts: 0, FIFO errors: 0, Resource errors: 0
      Output errors:
        Carrier transitions: 9, Errors: 0, Drops: 0, Collisions: 0, Aged packets: 0, FIFO errors: 0,
        HS link CRC errors: 0, MTU errors: 0, Resource errors: 0
      Egress queues: 8 supported, 4 in use
      Queue counters:       Queued packets  Transmitted packets      Dropped packets
        0 best-effort                    0                    0                    0
        1 expedited-fo                   0                    0                    0
        2 assured-forw                   0                    0                    0
        3 network-cont                   0                    0                    0
      Queue number:         Mapped forwarding classes
        0                   best-effort
        1                   expedited-forwarding
        2                   assured-forwarding
        3                   network-control
      Active alarms  : None
      Active defects : None
      MAC statistics:                      Receive         Transmit
        Total octets                         17182            23504
        Total packets                          249              270
        Unicast packets                         87              270
        Broadcast packets                      162                0
        Multicast packets                        0                0
        CRC/Align errors                         0                0
        FIFO errors                              0                0
        MAC control frames                       0                0
        MAC pause frames                         0                0
        Oversized frames                         0
        Jabber frames                            0
        Fragment frames                          0
        VLAN tagged frames                       0
        Code violations                          0
      Filter statistics:
        Input packet count                       0
        Input packet rejects                     0
        Input DA rejects                         0
        Input SA rejects                         0
        Output packet count                                       0
        Output packet pad count                                   0
        Output packet error count                                 0
        CAM destination filters: 1, CAM source filters: 0
      Autonegotiation information:
        Negotiation status: Complete
        Link partner:
            Link mode: Full-duplex, Flow control: None, Remote fault: OK,
            Link partner Speed: 1000 Mbps
        Local resolution:
            Flow control: None, Remote fault: Link OK
      Packet Forwarding Engine configuration:
        Destination slot: 0
      CoS information:
        Direction : Output
        CoS transmit queue               Bandwidth               Buffer Priority   Limit
                                  %            bps     %           usec
        0 best-effort            95      950000000    95              0      low    none
        3 network-control         5       50000000     5              0      low    none
      Interface transmit statistics: Disabled

      Logical interface ge-0/0/14.0 (Index 87) (SNMP ifIndex 544) (Generation 152)
        Flags: SNMP-Traps 0x0 Encapsulation: ENET2
        Traffic statistics:
         Input  bytes  :                17602
         Output bytes  :                23504
         Input  packets:                  256
         Output packets:                  270
        Local statistics:
         Input  bytes  :                  420
         Output bytes  :                    0
         Input  packets:                    7
         Output packets:                    0
        Transit statistics:
         Input  bytes  :                17182                    0 bps
         Output bytes  :                23504                    0 bps
         Input  packets:                  249                    0 pps
         Output packets:                  270                    0 pps
        Security: Zone: VPN
        Allowed host-inbound traffic : bootp bfd bgp dns dvmrp igmp ldp msdp nhrp ospf pgm pim rip
        router-discovery rsvp sap vrrp dhcp finger ftp tftp ident-reset http https ike netconf ping
        reverse-telnet reverse-ssh rlogin rpm rsh snmp snmp-trap ssh telnet traceroute xnm-clear-text
        xnm-ssl lsping ntp sip r2cp webapi-clear-text webapi-ssl
        Flow Statistics :
        Flow Input statistics :
          Self packets :                     0
          ICMP packets :                     0
          VPN packets :                      0
          Multicast packets :                0
          Bytes permitted by policy :        0
          Connections established :          0
        Flow Output statistics:
          Multicast packets :                0
          Bytes permitted by policy :        0
        Flow error statistics (Packets dropped due to):
          Address spoofing:                  0
          Authentication failed:             0
          Incoming NAT errors:               0
          Invalid zone received packet:      0
          Multiple user authentications:     0
          Multiple incoming NAT:             0
          No parent for a gate:              0
          No one interested in self packets: 0
          No minor session:                  0
          No more sessions:                  0
          No NAT gate:                       0
          No route present:                  0
          No SA for incoming SPI:            0
          No tunnel found:                   0
          No session for a gate:             0
          No zone or NULL zone binding       0
          Policy denied:                     0
          Security association not active:   0
          TCP sequence number out of window: 0
          Syn-attack protection:             0
          User authentication errors:        0
        Protocol eth-switch, MTU: 0, Generation: 166, Route table: 0
          Flags: None

    Physical interface: ge-0/0/15, Enabled, Physical link is Up
      Interface index: 149, SNMP ifIndex: 528, Generation: 152
      Link-level type: Ethernet, MTU: 1514, Link-mode: Full-duplex, Speed: 1000mbps, BPDU Error: None,
      MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Flow control: Disabled,
      Auto-negotiation: Enabled, Remote fault: Online
      Device flags   : Present Running
      Interface flags: SNMP-Traps Internal: 0x0
      Link flags     : None
      CoS queues     : 8 supported, 8 maximum usable queues
      Hold-times     : Up 0 ms, Down 0 ms
      Current address: dc:38:e1:22:44:27, Hardware address: dc:38:e1:22:44:27
      Last flapped   : 2018-01-21 11:03:27 GMT-6 (21:04:07 ago)
      Statistics last cleared: Never
      Traffic statistics:
       Input  bytes  :                78294                    0 bps
       Output bytes  :               202054                    0 bps
       Input  packets:                  763                    0 pps
       Output packets:                  732                    0 pps
      Input errors:
        Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Policed discards: 0, L3 incompletes: 0,
        L2 channel errors: 0, L2 mismatch timeouts: 0, FIFO errors: 0, Resource errors: 0
      Output errors:
        Carrier transitions: 9, Errors: 0, Drops: 0, Collisions: 0, Aged packets: 0, FIFO errors: 0,
        HS link CRC errors: 0, MTU errors: 0, Resource errors: 0
      Egress queues: 8 supported, 4 in use
      Queue counters:       Queued packets  Transmitted packets      Dropped packets
        0 best-effort                    0                    0                    0
        1 expedited-fo                   0                    0                    0
        2 assured-forw                   0                    0                    0
        3 network-cont                   0                    0                    0
      Queue number:         Mapped forwarding classes
        0                   best-effort
        1                   expedited-forwarding
        2                   assured-forwarding
        3                   network-control
      Active alarms  : None
      Active defects : None
      MAC statistics:                      Receive         Transmit
        Total octets                         78294           202054
        Total packets                          763              732
        Unicast packets                        736              732
        Broadcast packets                       27                0
        Multicast packets                        0                0
        CRC/Align errors                         0                0
        FIFO errors                              0                0
        MAC control frames                       0                0
        MAC pause frames                         0                0
        Oversized frames                         0
        Jabber frames                            0
        Fragment frames                          0
        VLAN tagged frames                       0
        Code violations                          0
      Filter statistics:
        Input packet count                       0
        Input packet rejects                     0
        Input DA rejects                         0
        Input SA rejects                         0
        Output packet count                                       0
        Output packet pad count                                   0
        Output packet error count                                 0
        CAM destination filters: 1, CAM source filters: 0
      Autonegotiation information:
        Negotiation status: Complete
        Link partner:
            Link mode: Full-duplex, Flow control: None, Remote fault: OK,
            Link partner Speed: 1000 Mbps
        Local resolution:
            Flow control: None, Remote fault: Link OK
      Packet Forwarding Engine configuration:
        Destination slot: 0
      CoS information:
        Direction : Output
        CoS transmit queue               Bandwidth               Buffer Priority   Limit
                                  %            bps     %           usec
        0 best-effort            95      950000000    95              0      low    none
        3 network-control         5       50000000     5              0      low    none
      Interface transmit statistics: Disabled

      Logical interface ge-0/0/15.0 (Index 88) (SNMP ifIndex 545) (Generation 153)
        Flags: SNMP-Traps 0x0 Encapsulation: ENET2
        Traffic statistics:
         Input  bytes  :                79478
         Output bytes  :               202054
         Input  packets:                  778
         Output packets:                  732
        Local statistics:
         Input  bytes  :                 1184
         Output bytes  :                    0
         Input  packets:                   15
         Output packets:                    0
        Transit statistics:
         Input  bytes  :                78294                    0 bps
         Output bytes  :               202054                    0 bps
         Input  packets:                  763                    0 pps
         Output packets:                  732                    0 pps
        Security: Zone: VPN2
        Allowed host-inbound traffic : bootp bfd bgp dns dvmrp igmp ldp msdp nhrp ospf pgm pim rip
        router-discovery rsvp sap vrrp dhcp finger ftp tftp ident-reset http https ike netconf ping
        reverse-telnet reverse-ssh rlogin rpm rsh snmp snmp-trap ssh telnet traceroute xnm-clear-text
        xnm-ssl lsping ntp sip r2cp webapi-clear-text webapi-ssl
        Flow Statistics :
        Flow Input statistics :
          Self packets :                     0
          ICMP packets :                     0
          VPN packets :                      0
          Multicast packets :                0
          Bytes permitted by policy :        0
          Connections established :          0
        Flow Output statistics:
          Multicast packets :                0
          Bytes permitted by policy :        0
        Flow error statistics (Packets dropped due to):
          Address spoofing:                  0
          Authentication failed:             0
          Incoming NAT errors:               0
          Invalid zone received packet:      0
          Multiple user authentications:     0
          Multiple incoming NAT:             0
          No parent for a gate:              0
          No one interested in self packets: 0
          No minor session:                  0
          No more sessions:                  0
          No NAT gate:                       0
          No route present:                  0
          No SA for incoming SPI:            0
          No tunnel found:                   0
          No session for a gate:             0
          No zone or NULL zone binding       0
          Policy denied:                     0
          Security association not active:   0
          TCP sequence number out of window: 0
          Syn-attack protection:             0
          User authentication errors:        0
        Protocol eth-switch, MTU: 0, Generation: 167, Route table: 0
          Flags: None


      Logical interface vlan.2 (Index 70) (SNMP ifIndex 549) (Generation 135)
        Flags: SNMP-Traps 0x0 VLAN-Tag [ 0x8100.2 ]  Encapsulation: ENET2
        Bandwidth: 0
        Traffic statistics:
         Input  bytes  :                 4636
         Output bytes  :                19844
         Input  packets:                   87
         Output packets:                  280
        Local statistics:
         Input  bytes  :                  952
         Output bytes  :                 9780
         Input  packets:                   34
         Output packets:                  180
        Transit statistics:
         Input  bytes  :                 3684                    0 bps
         Output bytes  :                10064                    0 bps
         Input  packets:                   53                    0 pps
         Output packets:                  100                    0 pps
        Security: Zone: VPN
        Allowed host-inbound traffic : bootp bfd bgp dns dvmrp igmp ldp msdp nhrp ospf pgm pim rip
        router-discovery rsvp sap vrrp dhcp finger ftp tftp ident-reset http https ike netconf ping
        reverse-telnet reverse-ssh rlogin rpm rsh snmp snmp-trap ssh telnet traceroute xnm-clear-text
        xnm-ssl lsping ntp sip r2cp webapi-clear-text webapi-ssl
        Flow Statistics :
        Flow Input statistics :
          Self packets :                     55
          ICMP packets :                     55
          VPN packets :                      0
          Multicast packets :                0
          Bytes permitted by policy :        4456
          Connections established :          76
        Flow Output statistics:
          Multicast packets :                0
          Bytes permitted by policy :        10096
        Flow error statistics (Packets dropped due to):
          Address spoofing:                  0
          Authentication failed:             0
          Incoming NAT errors:               0
          Invalid zone received packet:      0
          Multiple user authentications:     0
          Multiple incoming NAT:             0
          No parent for a gate:              0
          No one interested in self packets: 0
          No minor session:                  0
          No more sessions:                  0
          No NAT gate:                       0
          No route present:                  0
          No SA for incoming SPI:            0
          No tunnel found:                   0
          No session for a gate:             0
          No zone or NULL zone binding       0
          Policy denied:                     0
          Security association not active:   0
          TCP sequence number out of window: 0
          Syn-attack protection:             0
          User authentication errors:        0
        Protocol inet, MTU: 1500, Generation: 149, Route table: 0
          Flags: Sendbcast-pkt-to-re
          Addresses, Flags: Is-Preferred Is-Primary
            Destination: 172.16.2/24, Local: 172.16.2.1, Broadcast: 172.16.2.255,
            Generation: 144

     
      Logical interface vlan.4 (Index 72) (SNMP ifIndex 550) (Generation 137)
        Flags: SNMP-Traps 0x0 VLAN-Tag [ 0x8100.5 ]  Encapsulation: ENET2
        Bandwidth: 0
        Traffic statistics:
         Input  bytes  :                61912
         Output bytes  :               190078
         Input  packets:                  707
         Output packets:                  742
        Local statistics:
         Input  bytes  :                 1792
         Output bytes  :                 4536
         Input  packets:                   24
         Output packets:                   66
        Transit statistics:
         Input  bytes  :                60120                    0 bps
         Output bytes  :               185542                    0 bps
         Input  packets:                  683                    0 pps
         Output packets:                  676                    0 pps
        Security: Zone: VPN2
        Allowed host-inbound traffic : bootp bfd bgp dns dvmrp igmp ldp msdp nhrp ospf pgm pim rip
        router-discovery rsvp sap vrrp dhcp finger ftp tftp ident-reset http https ike netconf ping
        reverse-telnet reverse-ssh rlogin rpm rsh snmp snmp-trap ssh telnet traceroute xnm-clear-text
        xnm-ssl lsping ntp sip r2cp webapi-clear-text webapi-ssl
        Flow Statistics :
        Flow Input statistics :
          Self packets :                     26
          ICMP packets :                     52
          VPN packets :                      0
          Multicast packets :                0
          Bytes permitted by policy :        57322
          Connections established :          269
        Flow Output statistics:
          Multicast packets :                0
          Bytes permitted by policy :        160758
        Flow error statistics (Packets dropped due to):
          Address spoofing:                  0
          Authentication failed:             0
          Incoming NAT errors:               0
          Invalid zone received packet:      0
          Multiple user authentications:     0
          Multiple incoming NAT:             0
          No parent for a gate:              0
          No one interested in self packets: 0
          No minor session:                  0
          No more sessions:                  0
          No NAT gate:                       0
          No route present:                  0
          No SA for incoming SPI:            0
          No tunnel found:                   0
          No session for a gate:             0
          No zone or NULL zone binding       0
          Policy denied:                     0
          Security association not active:   0
          TCP sequence number out of window: 0
          Syn-attack protection:             0
          User authentication errors:        0
        Protocol inet, MTU: 1500, Generation: 151, Route table: 0
          Flags: Sendbcast-pkt-to-re
          Addresses, Flags: Is-Preferred Is-Primary
            Destination: 172.16.3/24, Local: 172.16.3.1, Broadcast: 172.16.3.255, Generation: 148

     



  • 4.  RE: SRX240H2 - ARP Issues - Separate VLANs on Multi-NIC Server
    Best Answer

    Posted 01-21-2018 11:26

    From what I see you have the same base mac-address on all vlan.X interfaces which is causing the issue you are seeing.

    On SRX apparantly you cannot change mac-address on a vlan/irb interface (tested on SRX300 with Junos 15.1X49-D120).

     

    Only alternative I can come up with is deactivate vlan.4 and move the configuration directly to ge-0/0/15.0 so it function as a L3 IFL instead of a switchport. Then the mac-address will be different from vlan.2 and can also be changed with 'set interface ge-0/0/15 mac xx:xx:xx:xx:xx'.

     

    But I must admit it's a strange limitation.



  • 5.  RE: SRX240H2 - ARP Issues - Separate VLANs on Multi-NIC Server

    Posted 01-21-2018 12:25

    Interestingly enough, I removed a hard-code associated on the Juniper with the MAC address on my server's NICs with the 172.16.2.2 and 172.16.3.2 addresses and now it is working fine.....   absolutely no idea why.  I added these before because of some troubleshooting and issues I was having.  Now i just turned on source routing on my server and everything is working great!  But as far as the limitations are concerned, I saw some other people complaining about the same thing.  Thanks for taking a look, if i run into some more issues I'll do as you have advised below.