Gateway of last resort is configured by default

[botarga198]

Hi everyone.

I have a router who know a prefix by  ebgp and   it put   automatically has gateway of last resort, i dont have configuration like static route or ip default network, the router just  shows this prefix like a  gateway of last resort.

RP/0/RSP0/CPU0:MC#sh route
Thu Apr 25 14:23:45.601 DST

Codes: C - connected, S - static, R - RIP, B - BGP, (>) - Diversion path
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, su - IS-IS summary null, * - candidate default
U - per-user static route, o - ODR, L - local, G - DAGR, l - LISP
A - access/subscriber, a - Application route
M - mobile route, r - RPL, t - Traffic Engineering, (!) - FRR Backup path

Gateway of last resort is 192.168.1.1 to network 10.0.0.0>>>>>>>>>>>>>>>>>>

I know  10.0.0.0 prefix   just for ebgp, i  dont have acces to  other router.

I would like to know,  why does the router has this behavior?

Thanks so much  for youe help.

Regards

[balaji.bandi]

Can you post the show run and also show ip route full output.

or  for guidence look below document ;

https://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/16448-default.html

[Richard Burts]

We do not know enough about your environment to be able to give you good advice. If you would tell us more about your environment (what device is this, what routing protocols are configured, what interfaces do you have), and if you would post the complete output of show ip route then we might be able to give you better advice. 

HTH

Rick