Dear Netpros,
We have a client who have taken a internet connectivity from us. This client already having a another internet connectivity from some another provider. They want to operate on both the connectivity simultaneously. Attached is the network current network connectivity scenario in which we are representing ourselves as PROVER-B.
At present PROVIDER-A wan link is connected on client router Gig0/0 interface (1.1.1.2/29), and we (PROVIDER-B) connected on client router Gig0/1 interface(2.2.2.2/29). TWO default route is configured on client router towards both provider’s network i.e.
ip route 0.0.0.0 0.0.0.0 1.1.1.1 name Provider_A
ip route 0.0.0.0 0.0.0.0 2.2.2.1 name Provider_B
Client router Gig0/1/1 interface (172.16.0.1/24) is connected with LAN L-3 switch from where customer’s LAN HOST are connected (with private natted IPs of 172.16.0.XX pool).
Please find the configs of WAN/LAN interfaces from customer router :-
à
interface GigabitEthernet0/0
description +++ Connected to Provider-A +++
ip address 1.1.1.2 255.255.255.248
ip nat outside
duplex full
speed 100
à
interface GigabitEthernet0/0
description +++ Connected to Provider-B +++
ip address 2.2.2.2 255.255.255.248
ip nat outside
duplex full
speed 100
à
interface GigabitEthernet0/0/0
description +++ Connected to L3 Switch +++
ip address 172.16.0.1 255.255.255.0
ip nat inside
negotiation auto
à
ip nat inside source static 172.16.0.3 1.1.1.3
ip nat inside source static 172.16.0.8 2.2.2.5
[PC with private IP 172.16.0.3 is binded with Provider-A ip 1.1.1.3 and …….PC with private IP 172.16.0.8 is binded with our(Provider-B) ip 2.2.2.5]
Note- These NATTED PC are having single LAN card.
Problem :- Problem we are facing that at our end router(Provider-B) on which this client internet connectivity is connected. We always getting high “input” traffic i.e. Upload traffic from customer (even when customer is not accessing/browsing on our network) and output traffic on our router interface is almost very small. Like below , which is recently taken from our router respective interface when client is not using /acessing network.
30 second input rate 634000 bits/sec, 310 packets/sec
30 second output rate 2000 bits/sec, 2 packets/sec
Sometime client is not able to browse by using our network. After removing the default route towards our WAN IP from client router and then again adding it , browsing happening. This is the only point of conclusion with is till time. We have checked almost thigs , but suspecting some routing or configuration related issue. Please suggest if the existing configs on client router is proper or if any need to add or remove any command.
*** => Client don't have any plan for future to segragate the LAN (private) IP pool for both the Providers. They want to use with current IP scheme configured.
Txns
