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I connect AREA 3 (router A) to AREA 0 ( router B) by the transit AREA 1. The router-id of the router A is its loopback, so is the router B. Should I treat the router A as a BACKBONE router? I apply the authentication in AREA 0, not in the route...
Normally, the Loopback is used for iBGP peers, not for eBGP peers, that connect directly. But with BGP confederation, how we use the update-source interface?
A router runs OSPF and ISIS. OSPF runs on s0 and s1, ISIS runs on s2 and s3. When redistribute each other, the address of s0 and s1 are imported into ISIS, but the address of s2 and s3 are not imported into OSPF. Why does this happen? I have to a...
Merry Christmas!Thanks for everybody.After 27 times configuration, I'v learned the regular of authentication in OSPF that should have been noted by Cisco Document.In a word, INT AUTH is preferred than AREA AUTH, AREA AUTH is preferred than NO AUTH, T...
No config now. But I know all the config is symmetric. Just log for rb here:rb#s ip os Routing Process "ospf 73" with ID 183.x.x.4 Supports only single TOS(TOS0) routes Supports opaque LSA Supports Link-local Signaling (LLS) It is an area border rout...
Yes, it's really different. It seems that the authentication on interface is individual from the authentication on area. But I cant understand why ra cannot form VL with symmetric config to RD.This is config about ra, rb, rd:!hostname ra!interface Lo...
=================================================!hostname rc!interface Loopback0 ip address 183.3.2.2 255.255.255.0 ip ospf network point-to-point!interface Serial1 ip address 183.3.42.2 255.255.255.0 ip ospf authentication ip ospf authentication-ke...
My problem is why it HAS working without "area 0 authentication message-digest"!!!!====================================================In case of the authentication Type 1 of the transit area is applied, the authentication Type 2 of backbone CANNOT b...
