I am trying to figure out how access-list work from a bgb environment using

ccoletti · ‎04-27-2007

Hi

I am trying to figure out how access-list work from a bgb environment using cisco 2821 flash:c2800nm-advipservicesk9-mz.124-7a.bin

Is it ingress or egress from the Ethernet or serial interface that access-list 6 is applied?

router bgp 200

no synchronization

bgp log-neighbor-changes

network 10.9.2.61 mask 255.255.255.255

network 142.65.244.0 mask 255.255.255.0

neighbor 10.20.0.160 remote-as 400

no auto-summary

Access-list 6 remark Test system deny

Access-list 6 deny 142.65.129.161

Access-list 6 permits any

Thx you

Rq

Charles

royalblues · ‎04-27-2007

Charles,

With the config you provided, the access-list doesn't seem to be influencing the BGP at all.

Narayan

ccoletti · ‎04-27-2007

Narayan,

That alarming, would you know where there is a link that can explain

Access-list and how they are applied to a bgp system. Thank you for the quick

Response.

Charlie

Harold Ritter · ‎04-27-2007

Charles,

As Narayan indicated, the access-list is currently apply to you BGP config.

What is it you are trying to achieve. Are you trying to filter traffic, in which case you would apply the access-list inbound or outbound on a given interface or are you trying to filter routing updates, in which case the access-list would be applied either via the "neighbor distribute-list" or "route-map" command.

Hope this helps,

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
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Cuauhtémoc, Juárez
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México

ccoletti · ‎04-27-2007

Hello ,

i understand.

thank you for the quick responce.

charlie