Prev: I can't write ACLs
Next: Sr Network Engineer – CCIE Certified
From: Cisco.ahmed on 27 Jun 2008 15:59
Hi all,,
I have Some issues In BGP as Following::
I need brief Explanation about what difference between Redistribute
Connected Command and
Network Command

I have created 7 loopbacks I advertised 3 of them with network command
and advertised others with Network command


but The 3 networks I advertised them with network command cant be
learned with neighbor of ebgp

but it learned the distributed one's


when I make network command for the subnets between neighbors in
ebgp ,,, the other routers learned the networks advertised with
network command

so what differnce between redistribute and network command in
advertising networks Thanks all
From: Trendkill on 29 Jun 2008 16:42
On Jun 27, 3:59 pm, "Cisco.ah...(a)gmail.com" <Cisco.ah...(a)gmail.com>
wrote:
> Hi all,,
> I have Some issues In BGP as Following::
> I need brief Explanation about what difference between Redistribute
> Connected Command and
> Network Command
>
> I have created 7 loopbacks I advertised 3 of them with network command
> and advertised others with Network command
>
> but The 3 networks I advertised them with network command cant be
> learned with neighbor of ebgp
>
> but it learned the distributed one's
>
> when I make network command for the subnets between neighbors in
> ebgp ,,, the other routers learned the networks advertised with
> network command
>
> so what differnce between redistribute and network command in
> advertising networks Thanks all

Please paste your config. I suspect this is an issue with the
underlying functionality of BGP, that is BGP will not advertise
networks that are not in an underlying IGP (such as OSPF or EIGRP),
but I cannot be sure until you paste your interface, IGP, and BGP
config for me to review, and point out which routes are showing up or
not showing up in your neighbors. Redistribute connected should
advertise all your local interfaces into BGP, and network will work as
long as the router knows about the exact same route via an IGP. You
can summarize by using summary statements in the IGP, or using a
static route to null0 (which will never be used since you will have
more specific routes via and IGP), but will work great for putting the
route in the routing table so BGP will advertise. Paste your info and
one of us will try to help you.
From: Merv on 30 Jun 2008 10:26
It should be possible to advertise any of the loopbacks via the
network statement.

You need to make sure that the appropriate mask was used on the BGP
network command:

network x.x.x.x. mask m.m.m.m

The routes to be advertised must be in the routing table beforeBGP
will announce them. All connected routes should be in the routing
table.

Look at output of show ip route connected

to verify that the loopbacks are in fact in the main routing table

 | 
Pages: 1
Prev: I can't write ACLs
Next: Sr Network Engineer – CCIE Certified