10-20-2005 06:36 AM - edited 03-03-2019 10:46 AM
Hello,
i just had a site to site t1 installed between 2 sites here. we will call them site A and Site B. Site A has a 3745 router that handles a ds3 also and site B has a 2650xm. here is the ip addressing we will use:
SITE B: LAN 172.18.7.254/24 with a default route of 172.18.7.254 WAN 172.18.63.244/30 with B at 172.18.63.246 and SITE A at
172.18.63.245
does this look right for the serial interfaces at both locations:
SITE A 3745:
Interface serial 0/0
>>service-module t1 clock source line
>>service-module t1 timeslots 1-24 speed 64
>>service-module t1 framing esf
>>service-module t1 linecode b8zs
>>ip address 172.18.63.245 255.255.255.252
>>encapsulation ppp
>>no shut
SITE B 2650XM:
Interface serial 0/0
>>service-module t1 clock source internal
>>service-module t1 timeslots 1-24 speed 64
>>service-module t1 framing esf
>>service-module t1 linecode b8zs
>>ip address 172.18.63.246 255.255.255.252
>>encapsulation ppp
>>no shut
at site b we only have a 3650 for our core etc. i will plug fastethernet 0/0 into the 3560. the lan addressing is 172.18.7.0/24. i will run dhcp from the 3560. do i need any nat statements etc on the 3560/ im a little confused here.
also what would you recommend for ips on the fastethernet 0/0 of each router.
i really appreciate the help!
Bob C.
10-20-2005 08:34 PM
Your default gateway on Site B router should be 172.18.63.246 (Site A's serial interface).
Yor default gateway on 3560 should be 172.18.7.254
To communicate between site A and site B you dont need NAT. Is the DS3 at site A used for internet access ? If then you can configure NAT on the site A router.
controller t3 1/0
.
.
.
int s1/0:x
ip add
ip nat outside
int s0
description Wan link to Site B
ip add 172.18.63.245 255.255.255.252
ip nat inside
int e0
ip add 172.x.x.x
description LAn network at site A
ip nat inside
ip nat inside source list 1 interface s1/0:x overload
access-list 1 permit any
HTH
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