From: gladston@br.ibm.com
Date: Wed Jun 29 2005 - 09:56:13 GMT-3
Sorry Dave, my mistake. I remembered that there is another link between R2
and R6.
ICMP redirects are working fine.
R8#trace 148.5.66.1
Type escape sequence to abort.
Tracing the route to 148.5.66.1
1 148.5.26.2 8 msec 4 msec 4 msec
2 148.5.26.6 12 msec
*Mar 1 01:13:49: ICMP: time exceeded rcvd from 148.5.26.2
*Mar 1 01:13:49: ICMP: time exceeded rcvd from 148.5.26.2
*Mar 1 01:13:49: ICMP: time exceeded rcvd from 148.5.26.2
*Mar 1 01:13:49: ICMP: redirect rcvd from 148.5.26.2-- for 148.5.66.1 use
gw 148.5.26.6
Gladston
----- Forwarded by Alaerte Gladston Vidali/Brazil/IBM on 29/06/2005 09:54
-----
Alaerte Gladston Vidali/Brazil/IBM
29/06/2005 09:52
To
cc
Subject
RE: IRDP
Thanks Dave,
It works pretty well.
The only strange thing I notice is that R2 does not send ICMP redirect
when R8 send packet to R6's loopback address. (R2 and R6 are on the same
media).
ICMP redirects is enabled on R2.
Rack2R2#sh run int e0/0
Building configuration...
Current configuration : 192 bytes
!
interface Ethernet0/0
ip address 148.5.26.2 255.255.255.128
ip irdp
ip irdp maxadvertinterval 4
ip irdp minadvertinterval 3
ip irdp holdtime 12
ip irdp preference 25
full-duplex
Rack2R6#sh run int f 4/1
Building configuration...
Current configuration : 196 bytes
!
interface FastEthernet4/1
ip address 148.5.26.6 255.255.255.128
ip irdp
ip irdp maxadvertinterval 4
ip irdp minadvertinterval 3
ip irdp holdtime 12
ip irdp preference 50
full-duplex
R8#sir
Gateway Using Interval Priority Interface
148.5.26.6 IRDP 3 50 Ethernet0
148.5.26.2 IRDP 3 25 Ethernet0
Default gateway is 148.5.26.2
R8#deb ip icmp
ICMP packet debugging is on
R8#trace 148.5.6.1
Type escape sequence to abort.
Tracing the route to 148.5.6.1
1 148.5.26.2 4 msec 8 msec 8 msec
2 148.5.6.1 8 msec
*Mar 1 01:10:05: ICMP: time exceeded rcvd from 148.5.26.2
*Mar 1 01:10:05: ICMP: time exceeded rcvd from 148.5.26.2
*Mar 1 01:10:05: ICMP: rdp advert rcvd type 9, code 0, from 148.5.26.2
*Mar 1 01:10:05: ICMP: time exceeded rcvd from 148.5.26.2
*Mar 1 01:10:05: ICMP: dst (148.5.26.100) port unreachable rcv from
148.5.6.1 * 8 msec
Cordially
------------------------------------------------------------------
Gladston
"Dave Williams" <kapsi1911@hotmail.com>
28/06/2005 17:53
To
Alaerte Gladston Vidali/Brazil/IBM@IBMBR, ccielab@groupstudy.com
cc
Subject
RE: IRDP
Gladston,
Try using gateway discovery protocol.
ip gdp irdp
DAve
>From: gladston@br.ibm.com
>Reply-To: gladston@br.ibm.com
>To: ccielab@groupstudy.com
>Subject: IRDP Date: Tue, 28 Jun 2005 14:55:43 -0400
>
>Is it possible to have a router simulating a host an discover the default
>gateway using IRDP?
>
>I tried just 'ip irdp' but this only enables R14 to send IRDP announces.
>R14 does not process the IRDP announcements received from R6 and R4.
>
>
>(R6 and R4 are the default gateways sending IRDP advertisements)
>
>*Mar 1 23:12:15: IP: s=148.5.46.4 (Ethernet0), d=255.255.255.255, len
36,
>rcvd
>*Mar 1 23:12:15: ICMP type=9, code=0
>*Mar 1 23:12:16: IP: s=148.5.46.6 (Ethernet0), d=224.0.0.1, len 36, rcvd
1
>*Mar 1 23:12:16: ICMP type=9, code=0
>
>R14#sir
>Default gateway is not set
>
>Host Gateway Last Use Total Uses Interface
>ICMP redirect cache is empty
>R14#
>
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This archive was generated by hypermail 2.1.4 : Wed Jul 06 2005 - 14:43:45 GMT-3