Cisco network WAN HEEEELP!!!

Jun 28, 2005 1 Replies

Ok, So I don't always know what I'm doing. I need some help. I've got a mainsite router that has a T1 coming in and 6 remote sites feeding 256k frac T1 to this mainsite router.



Basically, my problem is, i can ping the remote sites LAN no problem but the WAN interface will only respond 30-40% of the time. And it usually expires in transit!!! But the remote site LAN's respond 100%. When I do a trace off the mainsite router I get it appears that it bounces from one router to the other. What am I doing wrong????



Also, I'd like to do this with static routes, but if I turn rip off, the sites stop responding and its a big mess. What am I missing there?



Here are the mainsite and 2 remote configs: Mainsite: Building configuration...



Current configuration : 1821 bytes ! version 12.1 no service single-slot-reload-enable service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname main-site ! enable secret enable password ! ! ! ! ! memory-size iomem 15 ip subnet-zero ! ! ! ! ! ! interface Serial0 bandwidth 1536 no ip address encapsulation frame-relay IETF service-module t1 timeslots 1-24 frame-relay interface-dlci 100 frame-relay lmi-type ansi ! interface Serial0.101 point-to-point description DLCI to site1 bandwidth 256 ip address 10.254.10.1 255.255.255.0 frame-relay interface-dlci 101 ! interface Serial0.102 point-to-point description DLCI 102 to site2 bandwidth 256 ip address 10.254.10.105 255.255.255.0 frame-relay interface-dlci 102 ! interface Serial0.103 point-to-point description DLCI 103 to site3 bandwidth 256 ip address 10.254.10.106 255.255.255.0 frame-relay interface-dlci 103 ! interface Serial0.104 point-to-point description DLCI 104 to site4 bandwidth 256 ip address 10.254.10.107 255.255.255.0 frame-relay interface-dlci 104 ! interface Serial0.105 point-to-point description DLCI 105 to site5 bandwidth 256 ip address 10.254.10.108 255.255.255.0 frame-relay interface-dlci 105 ! interface Serial0.106 point-to-point description DLCI 106 to site6 bandwidth 256 ip address 10.254.10.109 255.255.255.0 frame-relay interface-dlci 106 ! interface FastEthernet0 ip address 10.1.10.253 255.255.255.0 speed auto ! router rip version 2 network 10.0.0.0 neighbor 10.9.10.0 neighbor 10.2.10.0 neighbor 10.254.10.0 neighbor 10.8.10.0 neighbor 10.7.10.0 ! ip classless ip route 0.0.0.0 0.0.0.0 10.1.10.254 no ip http server ! ! line con 0 line aux 0 line vty 0 4 password xxxxxx login ! no scheduler allocate end



Remote1



Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime service password-encryption ! hostname site1 ! enable password ! ip subnet-zero no ip domain-lookup ! ! ! ! ! interface Ethernet0 description connected to EthernetLAN ip address 10.2.10.254 255.255.255.0 no ip directed-broadcast no cdp enable ! interface Ethernet1 no ip address no ip directed-broadcast shutdown ! interface Serial0 no ip address no ip directed-broadcast encapsulation frame-relay IETF no ip mroute-cache service-module t1 timeslots 1-4 service-module t1 remote-alarm-enable ! interface Serial0.1 point-to-point description connected to mainsite 1750 DLCI 101 ip address 10.254.10.2 255.255.255.0 ip helper-address 10.1.10.4 no ip directed-broadcast no arp frame-relay no cdp enable frame-relay interface-dlci 100 IETF ! router rip version 2 network 10.0.0.0 neighbor 10.254.10.0 neighbor 10.1.10.0 no auto-summary ! ip classless ip route 0.0.0.0 0.0.0.0 10.254.10.1 ip route 192.39.0.0 255.255.255.0 10.254.10.1 ! access-list 100 permit ip any any ! line con 0 exec-timeout 0 0 password 7 010311165E1A login transport input none line vty 0 4 password 7 login ! end



Remote2


Current configuration : 967 bytes ! version 12.2 no service pad service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname site2 ! enable secret 5 enable password ! ip subnet-zero ! ! interface Ethernet0 ip address 10.7.10.254 255.255.255.0 no ip route-cache no ip mroute-cache ! interface Serial0 no ip address shutdown ! interface Serial1 no ip address encapsulation frame-relay IETF no ip mroute-cache service-module t1 timeslots 21-24 service-module t1 remote-alarm-enable frame-relay lmi-type ansi ! interface Serial1.1 point-to-point description connected to Cisco1750 ip address 10.254.10.7 255.255.255.0 no arp frame-relay no cdp enable frame-relay interface-dlci 100 IETF ! router rip version 2 network 10.0.0.0 neighbor 10.7.10.0 ! ip classless ip route 0.0.0.0 0.0.0.0 10.254.10.107 no ip http server ! ! line con 0 exec-timeout 0 0 line vty 0 4 password pwreq login ! end



todd

you have re-used the same subnet for each frame relay PVC - you should have a separate one for each (note - you declared each PVC as "point to point")

what happens is that when you try to send packets to an address in the WAN the routers cant decide which PVC they should go to.

the good news is that i am surprised it is running at all....

since you are running RIP2 they could use different subnet masks to your LANs, but dont have to.

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