From: David Prall (dcp@dcptech.com)
Date: Tue Nov 07 2006 - 16:42:42 ART
Traceroute uses a udp packet to port 33434 with a TTL set to the current hop
count.
http://www.cisco.com/warp/public/105/traceroute.shtml
You can do a debug ip policy
David
-- David C Prall dcp@dcptech.com http://dcp.dcptech.com> -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On > Behalf Of Michael Zuo > Sent: Tuesday, November 07, 2006 2:15 PM > To: Hafizur Rahman (Europe); ccielab@groupstudy.com > Subject: RE: local policy route-map not working for me > > Still does not work, I change the configuration to: > > ip access-list extended PING > permit icmp any host 142.1.0.4 > ! > route-map PING permit 10 > match ip address PING > set ip next-hop 142.1.46.4 > > still: > > > R6(config-ext-nacl)#do trace 142.1.0.4 > > Type escape sequence to abort. > Tracing the route to 142.1.0.4 > > 1 204.12.1.3 4 msec 0 msec 4 msec > 2 142.1.0.4 32 msec * 28 msec > > Any ideas on how I can debug? > > Thanks... > > -----Original Message----- > From: Hafizur Rahman (Europe) [mailto:hafizur.rahman@uk.didata.com] > Sent: Monday, November 06, 2006 11:37 PM > To: Michael Zuo; ccielab@groupstudy.com > Subject: RE: local policy route-map not working for me > > Hi Michael > > Try using extended ACl instead of prefix list > > -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On > Behalf Of > Michael Zuo > Sent: 07 November 2006 07:09 > To: ccielab@groupstudy.com > Subject: local policy route-map not working for me > > Hi All, > > > > I am having a problem with my local policy routing and can not figure > out why it is not working: > > > > Topology: > > ======= > > R3, R4 and R6 forms a triangle > > > > Networks: > > ======= > > Between R3, R4: 142.1.34.0/24 > > Between R3, R6: 204.12.1.0/24 > > Between R4, R6: 142.1.46.0/24 > > > > R4 also have IP address 142.1.0.4 > > > > OSPF is configured in a way that ping from R6 to 142.1.0.4 > would go thru > R3 first (R3 touches area 0) > > > > I am trying to use policy routing to route ICMP from R6 directly over > the connection between R4 and R6 which is not in OSPF > > > > Configuration > > ======= > > > > R6: > > > > router ospf 1 > > log-adjacency-changes > > network 54.1.3.6 0.0.0.0 area 3 > > network 204.12.1.6 0.0.0.0 area 3 > > > > ip local policy route-map PING > > ! > > > > ip prefix-list 10 seq 5 permit 142.1.0.0/24 > > ! > > ! > > route-map PING permit 10 > > match ip address prefix-list 10 > > set ip next-hop 142.1.46.4 > > > > Result > > ===== > > > > R6(config)#do trace 142.1.0.4 > > > > Type escape sequence to abort. > > Tracing the route to 142.1.0.4 > > > > 1 204.12.1.3 0 msec 0 msec 4 msec > > 2 142.1.0.4 28 msec * 28 msec > > R6(config)# > > > > R6#sh ip loc pol > > Local policy routing is enabled, using route map PING > > route-map PING, permit, sequence 10 > > Match clauses: > > ip address prefix-lists: 10 > > Set clauses: > > ip next-hop 142.1.46.4 > > Policy routing matches: 5 packets, 320 bytes > > > > > > > > > > Which means R6 still go thru R3 first before getting to R4!! Also, the > packet count in "sh ip loc pol" does not increase > > > > > > Am I missing something obvious? How do I debug further? > > > > > > > > Thanks a bunch!! > > ______________________________________________________________ > _________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html > > > ----------------------------------------- > Dimension Data - providing global IP based solutions and services > for over 20 years supported locally from a single point of contact. > > This email is confidential. If you are not the intended recipient > then you must not copy it, forward it, use it for any purpose, or > disclose it to another person. > > Please also note that the author of this email is not authorised > to; make any offers capable of acceptance unless expressly stated > in a validly dated and attached document which shall be subject to > the terms and conditions stated therein or, conclude any contract > on behalf of Dimension Data by email. > > Although Dimension Data has taken reasonable precautions to ensure > no viruses are present in this email, the company cannot accept > responsibility for any loss or damage arising from the use of this > email or attachments. > > ______________________________________________________________ > _________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
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