Hi Kings, The TTL is decreased by 1 on every routed hop. If it is decreased on inside interface that would mean the R3 sees 253. I think the R3 will see 254 - assuming you're not using loopbacks.
Regards, Piotr 2011/5/10 Kingsley Charles <[email protected]> > Hi all > > When a router receives a packet, will the TTL be decremented on the ingress > interface or egress interfaces while exiting? I am raising this question due > to the following case. > > > R1 ---------- R2 ------------- R3 > > > > R1 and R3 are EBGP peers and we should configure hops as "2" with BGP ttl > security as following: > > neighbor X.X.X.X ttl-security hops 2 > > Here R2 is the only router in between which reduces the TTL. If hops is > "2", the received TTL should be either 253 or above. Hence, it means the TTL > is decremented on the ingress interface right? > > With regards > Kings > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
