From: frank.yu@japan.bnpparibas.com
Date: Mon Nov 04 2002 - 23:30:45 GMT-3
Hunt,
I have the similar infrastructure on my network. Just use "network
201.50.13.0 mask 255.255.255.0" under router bgp xxx on rtr1 and "network
200.100.30.0 mask 255.255.255.0" under router bgp xxx on rtr2. It will do
the job.
Frank
Internet
huntl@webcentral.com.au@groupstudy.com - 11/05/2002 10:59 AM
Please respond to huntl@webcentral.com.au
Sent by: nobody@groupstudy.com
To: ccielab
cc:
Subject: NAT /w EBGP
Team:
Inside Outside
RTR1----ISP1
| \ /
HostA \/
| /\
| / \
RTR2---ISP2
RTR1 & RTR2 are connected by IBGP & OSPF. In addition, RTR1 & RTR2 each
have 2
EBGP links connecting to ISP1 & ISP2 respectively.
RTR1 & RTR2 - AS3
ISP1 - AS1
ISP2 - AS2
RTR1, Eth0:- 172.16.3.1/24
RTR2, Eth0:- 172.16.3.2/24
Host A - 172.16.3.3/24
ISP1 has been assigned the address block 201.50.13.0/24, ISP2 has been
assigned
the address block 200.100.30.0/24.
What I want to achieve is that the NAT will translate inside addresses
appropriately for each ISP's assigned address block.
The problem I am having is that since hostA's IP is being NAT, neither RTR1
nor
RTR2 have the NAT range in their Routing Tables, which means I can't
advertise the NAT range to ISP1 & ISP2 in BGP by "network x.x.x.x mask
y.y.y.y". So what can I do to advertise these NAT ranges to ISP1 & ISP2??
Any help will be greatly appreciated.
Regards,
H.
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