I'll look at those statements and apply them to at least one of my srx's. The srx with vlan interface is where I have the virtual switch statements because that commits fine. That is my srx550. My srx300 has this virtual switch problem. It is my first opinion that it is an out of the box problem, however it is after adding configuration. I've never in all code adding have seen the srx300 do this. Requires rollback. Until I know of someone who can reproduce my problem with a fix I'll leave it out. My locale is most likely the factor. But I don't think it should do it at all. Thx for the replies.
B.S.C.M. I.T.T. Tech
A.A.S. I.T.T. Tech
Original Message:
Sent: 04-29-2026 00:23
From: Rene1
Subject: Virtual switch SRX300 and newer SRX
Hi
Since you have a moved interfaces to virtual switch they dissapear from your inet.0 table which would explain the APIPA addresses.
Your config is missing layer 3 configs, so you need an IRB interface for this to act as gateway.
add below
set interfaces irb unit 1 family inet address 192.168.1.1/24
then tell the switch to use the IRB
set routing-instances MyVRSwitch bridge-domains default vlan-id 1
set routing-instances MyVRSwitch bridge-domains default routing-interface irb.1
then tell the pool which router to use
set routing-instances MyVRSwitch access address-assignment pool p1 family inet dhcp-attributes router 192.168.1.1
other things to check
system services web-management
ensure irb.1 is added to security zones
Original Message:
Sent: 11-11-2025 19:34
From: eugene1973
Subject: Virtual switch SRX300 and newer SRX
I have had a little trouble with the routing instance of a virtual switch. The trouble is that it does something I've never seen my srx300 do. It gets stuck in dhcp apipa and is not accessible. I did not send it to rescue. I had to roll it back, which if I had chosen to do(rescue), is dangerous. But still perhaps it would be fine given a full reset. So a word to the wise. Make sure apipa is a policy before this. Does anyone actually have this working.
Can someone explain if other parts can work in this statement? It seems skimpy. My symptoms are:
Srx not accessible through web.
DHCP only gives apipa addresses.
Can only rollback history.
As with the web accessibility the srx seems to choke inherently and this shows to be true with virtual switch. But other problems arise. Can anyone give any advice?
srx300-c xfinity model
does not have stp, mstp, etc.
15.1X49-D60.7
MyVRSwitch {
instance-type virtual-switch;
access {
address-assignment {
neighbor-discovery-router-advertisement p4;
pool p1 {
family inet {
network 192.168.1.0/24;
}
}
pool p2 {
family inet6 {
prefix 2001:558::0/64;
}
}
pool p3 {
family inet6 {
prefix 2601:204::0/64;
}
}
pool p4 {
family inet6 {
prefix fe80::0/64;
}
}
}
}
vrf-advertise-selective {
family {
inet-mvpn;
inet6-mvpn;
}
}
forwarding-options {
load-balance {
per-prefix {
hash-seed 24051;
}
}
}
}
}
------------------------------
Adrian Aguinaga
B.S.C.M. I.T.T. Tech
(Construction Management)
A.A.S. I.T.T. Tech
(Drafting & Design)
------------------------------