GRE access-list

From: Hung, Sing-Yu (Sing-Yu.Hung@pccw.com)
Date: Sun Dec 15 2002 - 06:37:58 GMT-3


Dear,

        I have a tunnal between R3 and R13, can anyone tell me how to deny
gre protocols but ip protocols on R3 e0?

r3#sh run int e0
Building configuration...

Current configuration : 157 bytes
!
interface Ethernet0
 ip address 172.16.135.3 255.255.255.240
 ip access-group 136 in
 ip pim sparse-dense-mode
 no ip route-cache
 no ip mroute-cache
end

r3#sh run int tu 3
Building configuration...

Current configuration : 122 bytes
!
interface Tunnel3
 ip address 192.16.133.3 255.255.255.0
 tunnel source 172.16.3.1
 tunnel destination 172.16.13.1
end

r3#sl 136
Extended IP access list 136
    deny gre any any (63 matches)
    permit ip any any (172 matches)

----------------------------------------------------------------------
r13#p 192.16.133.3

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.16.133.3, timeout is 2 seconds:
!.!.! <--------------------------------" why ? "
Success rate is 60 percent (3/5), round-trip min/avg/max = 16/16/16 ms

r13#p 172.16.3.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.3.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/16/16 ms

r13#sh run int e3/1
Building configuration...

Current configuration : 147 bytes
!
interface Ethernet3/1
 ip address 172.16.134.13 255.255.255.0
 ip pim sparse-dense-mode
 no ip route-cache
 no ip mroute-cache
 half-duplex
end

r13#sh run int tu 3
Building configuration...

Current configuration : 162 bytes
!
interface Tunnel3
 ip address 192.16.133.13 255.255.255.0
 no ip route-cache
 no ip mroute-cache
 tunnel source 172.16.13.1
 tunnel destination 172.16.3.1
end

Bradford Hung

 Pacific Century CyberWorks
 Tel: 288 33125
.



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