01-06-2012 03:27 AM - edited 03-07-2019 04:11 AM
Hi all,
Please I need an urgent help. Please take look at the attached diagram, and the configs - I only copied the relevant ones.
I am presently configuring the links for ISP 1 (the green link). I have configured default routes and redistributed into eigrp on both edge routers (REMOTE OFFICE WAN and CISCO 3560 WAN).
Please look at the routing table, which shows default routes.
The issues I'm having are:
1. from the remote office, I can ping the Head Office gateway as well as the interface GigabitEthernet0/9 (10.151.49.4) on the CISCO 3560 WAN. But I cant reach any network inside the enterprise network. The issue is the same while pinging from the Head Office to the remote office. Only the routers can communicate, I've not been able to connect the two internal networks. Please what else should I configure that I'm leaving out? I need to ensure that the two internal networks can communicate.
2. How best can I configure the ISP 2 link for load balancing and redundancy? Please note the 10.0.0.0/network being used by the two service providers. Would that not be a problem?
CISCO 3560 WAN - AT THE HEAD OFFICE
interface GigabitEthernet0/9
description +++LINK TO SWIFT WAN LINK***
no switchport
ip address 10.151.49.4 255.255.255.248
spanning-tree portfast
router eigrp 10
redistribute connected
redistribute static
network 10.62.0.10 0.0.0.0
network 10.151.49.0 0.0.0.7
network 172.20.200.30 0.0.0.0
network 172.20.201.73 0.0.0.0
network 172.20.201.97 0.0.0.0
network 172.20.201.142 0.0.0.0
network 172.20.201.153 0.0.0.0
network 192.168.4.10 0.0.0.0
network 192.168.4.254 0.0.0.0
network 192.168.100.10 0.0.0.0
no auto-summary
ip classless
ip route 0.0.0.0 0.0.0.0 10.151.49.1
ip route 10.163.0.0 255.255.0.0 10.62.0.9
ip route 10.164.0.0 255.255.0.0 10.62.0.9
ip route 62.173.41.53 255.255.255.255 172.20.201.141
show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is 10.151.49.1 to network 0.0.0.0
172.21.0.0/16 is variably subnetted, 4 subnets, 3 masks
C 172.21.201.72/30 is directly connected, Port-channel44
D EX 172.21.207.3/32 [170/3072] via 172.20.201.141, 3d02h, Port-channel48
C 172.21.90.0/30 is directly connected, GigabitEthernet0/5
D 172.21.80.0/24 [90/28416] via 172.21.201.74, 00:01:11, Port-channel44
172.20.0.0/16 is variably subnetted, 84 subnets, 4 masks
D 192.168.168.8 [90/297246976] via 172.21.90.1, 1w5d, GigabitEthernet0/5
S* 0.0.0.0/0 [1/0] via 10.151.49.1
REMOTE OFFICE WAN
interface GigabitEthernet0/0
description +++LINK TO SWIFTTALK WAN+++
ip address 10.151.112.2 255.255.255.248
duplex auto
speed auto
router eigrp 10
network 172.25.100.0 0.0.0.255
redistribute static
ip route 0.0.0.0 0.0.0.0 10.151.112.1
ROUTER#sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
+ - replicated route, % - next hop override
Gateway of last resort is 10.151.112.1 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.151.112.1
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.151.112.0/29 is directly connected, GigabitEthernet0/0
L 10.151.112.2/32 is directly connected, GigabitEthernet0/0
ROUTER#
CISCO 3560 A - HEAD OFFICE LAN
show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is 172.20.201.1 to network 0.0.0.0
172.21.0.0/16 is variably subnetted, 4 subnets, 3 masks
D 172.21.201.72/30 [90/28672] via 172.20.201.1, 1w5d, Port-channel13
D EX 172.21.207.3/32 [170/3072] via 172.20.201.1, 7w0d, Port-channel13
D 172.21.90.0/30 [90/28672] via 172.20.201.1, 1w5d, Port-channel13
D 192.168.168.4 [90/297247488] via 172.20.201.1, 1w5d, Port-channel13
D 192.168.168.8 [90/297247488] via 172.20.201.1, 1w5d, Port-channel13
D*EX 0.0.0.0/0 [170/28672] via 172.20.201.1, 00:38:33, Port-channel13
Thank you as I expect your inputs.
01-06-2012 06:23 AM
What type of connections are these links? They have IPs but they aren't MPLS? You aren't learning your routes from ISP itself? Why do you have default routes set up? Is ISP providing Internet?
Thanks.
01-06-2012 06:39 AM
No auto-summary on your remote router.
01-06-2012 06:50 AM
Can you confirm that you have a proper EIGRP neighbor relationship between the sites? I do not see any EIGRP learned routes on Remote sites and any remote eigrp networks on the HQ side. Try what Brett said and see if tht makes any difference.
What does traceroute show you? Where is it dropping? Can you reach from the internal LAN switch to the remote router or vice-versa?
-amit singh
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