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next-hop-self for update received from iBGP neighbor

next-hop-self for update received from iBGP neighbor

Tatiana
New Contributor
Hi,

will next-hop-self still work for bgp update received from iBGP neighbor in ExtremeXOS?

for example for cisco additional routemap is required:

route-map RM-NHSset ip next-hop peer-address neighbor X.X.X.X route-map out RM-NHS While for juniper it works by default for iBGP neighbors within different clusters
18 REPLIES 18

Henrique
Extreme Employee
Hi Tatiana,

To configure outgoing updates to the specified neighbors to specify the address of the BGP connection originating the update as the next hop address, use the following command:

configure bgp neighbor next-hop-self

IPv4 unicast address family will be used by default. For IPv6 you must specify the option in the command.

Hi Tatiana, thanks for the feedback.

I have created an article with those steps:
https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-configure-a-BGP-router-reflector-wi...

Thanks Henrique, it helped,
We tested it on the equipment and route-map made his work.

Hi, I have just tested with the policy below and worked:

Policy: regrabgp

entry R1 {
if match any {
nlri 123.123.123.0/24 exact;
} then {
next-hop ;
permit ;
}
}

To match any routes with /24 mask-length you can use:

Policy: regrabgp

entry R1 {
if match any {
nlri any/24 exact;
} then {
next-hop ;
permit ;
}
}

BGP configuration for router B for the neighbor Router A:

create bgp neighbor 192.168.1.8 remote-AS-number 100 multi-hop
configure bgp neighbor 192.168.1.8 route-reflector-client
configure bgp neighbor 192.168.1.8 source-interface ipaddress 192.168.1.6
configure bgp neighbor 192.168.1.8 route-policy out regrabgp
enable bgp neighbor 192.168.1.8


Thanks Stephane to mention the routing-policy concepts. 🙂

Tatiana, please let us know if that worked for you.
GTM-P2G8KFN