02-13-2024 03:06 AM
Hi all,
I have the below configuration for a PPPoE session, and I get an IP from the server within the subnet 137.23.15.0/24 network on the dialer 0 interface. At the same time I have a vlan1 SVI with IP 137.23.15.137/29 that is connected back to my firewall, which is used to connect the firewall with my router (on the router is the pppoe session). However the SVI appears as up down. I have tried to add the SVI subnet as a subinterface on the Ethernet 0 interface but I still can't get traffic flowing.
137.23.15.137/29 137.23.15.0/24
|firewall| --> |router| --> |pppoe server|
Do you have any suggestions?
interface Ethernet0
no ip address
!
interface ethernet0.1203
encapsulation dot1Q 1203
pppoe-client dial-pool-number 1
!
interface Vlan1
ip address 137.23.15.137 255.255.255.248
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ip tcp adjust-mss 1412
!
interface Dialer0
ip address negotiated
no ip redirects
no ip unreachables
no ip proxy-arp
ip mtu 1452
ip flow ingress
ip virtual-reassembly in
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap pap callin
ppp chap hostname netbus@acne.com
ppp chap password 7 435245DE54A2342
ppp pap sent-username netbus@acne.com password 7 449245DE54A2C42
no cdp enable
!
ip route 0.0.0.0 0.0.0.0 Dialer0
!
dialer-list 1 protocol ip permit
02-13-2024 03:10 AM
Two IP in same subnet without Vrf
You can not do that
You need to config pppoe in FW and config router with BDI and assign IP to BVI of BDI.
MHM
02-13-2024 03:16 AM - edited 02-13-2024 03:22 AM
What if I get an IP from a separate subnet from the PPPoE server eg. 137.23.15.0/29? Would it work then?
02-13-2024 04:22 AM
Vlan need l2 port which one will be that l2 port ?
MHM
02-13-2024 04:23 AM
interface Ethernet0 I will configure it as
et0.1
encapsulation dot1q 1 native
02-14-2024 10:34 AM
Can I know why you need to add vlan SVI in router
Thanks
MHM
02-14-2024 10:58 PM
I have tried to add the SVI subnet as a subinterface on the Ethernet 0 interface but I still can't get traffic flowing.
The pppoe session is stuck in PADI
02-15-2024 07:10 AM
Router stuck in PADI is another issue it not relate to svi'
I think you need to contact ISP ask them the vlan tag need to add to your interface
Wait your reply
MHM
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