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  • 1.  ADSL - VDSL PPPoA config help

    Posted 05-16-2024 10:35

    I have an old config from a Cisco ASA which is here:

    interface Dialer1
     ip address negotiated
     ip mtu 1452
     encapsulation ppp
     ip tcp adjust-mss 1412
     dialer pool 1
     dialer-group 1
     ppp mtu adaptive
     ppp authentication chap callin
     ppp chap hostname email@email
     ppp chap password 7 password
     ppp ipcp dns request
     no cdp enable

    I've configured this on my Juniper SRX-340:

    set interfaces at-1/0/0 encapsulation atm-pvc
    set interfaces at-1/0/0 atm-options vpi 0
    set interfaces at-1/0/0 dsl-options operating-mode auto
    set interfaces at-1/0/0 unit 0 encapsulation atm-ppp-llc
    set interfaces at-1/0/0 unit 0 vci 35
    set interfaces at-1/0/0 unit 0 ppp-options chap default-chap-secret password
    set interfaces at-1/0/0 unit 0 ppp-options chap local-nameemail@email
    set interfaces at-1/0/0 unit 0 ppp-options chap passive
    set interfaces at-1/0/0 unit 0 family inet negotiate-address


    Which has raised the interface but logical and routing remains down:
    Interface               Admin Link Proto    Local                 Remote
    at-1/0/0                up    up
    at-1/0/0.0              up    down inet    
    at-1/0/0.32767          up    up

    I've found and followed the below guide:

    SRX

    Juniper remove preview
    SRX
    Hi, I've been having a read of the following document: https://www.juniper.net/documentation/en_US/junos/topics/example/vdsl2-pim-security-interface-configuring
    View this on Juniper >



    But can't manage to get routing or the logical interface to show as up and I don't know where to begin if I'm honest.

    Can anyone help here please?



    ------------------------------
    DARYLL SMITH
    ------------------------------



  • 2.  RE: ADSL - VDSL PPPoA config help

    Posted 18 days ago

    Hey Daryll,

    It's been a really long time since I've had to deal with ADSL, we are mostly fibre to the home here in NZ. 

    Below is a snippet of the configuration I used to use on an old SRX110 back in the day.

    Note the "encapsulation atm-ppp-vc-mux", this will be specific to your country and ISP setup, check your ISP's doc's for the encap type you should be setting.

    interfaces {
            at-1/0/0 {
            traceoptions {
                flag all;
            }
            encapsulation atm-pvc;
            atm-options {
                vpi 0;
            }
            dsl-options {
                operating-mode auto;
            }
            unit 0 {
                encapsulation atm-ppp-vc-mux;
                vci 0.100;
                ppp-options {
                    pap {
                        access-profile pppoa-client;
                        local-name "test@lab.net";
                        local-password "blah"; ## SECRET-DATA
                        passive;
                    }
                }
                keepalives;
                family inet {
                    negotiate-address;
                }
            }
        }

    Cheers

    Dave