From: Peter Kingston (kingstonp.ccie@gmail.com)
Date: Sun Jun 24 2007 - 02:19:06 ART
By default, the ip helper-address command will forward these 8 UDP ports:
UDP PORT
Common Name.
69 TFTP
67 BOOTP Client
68 BOOTP Server
37 Time Protocol
49 TACACS
53 DNS
137 NetBios
138 NetBios Datagram
It would probably work if you added the following command to your
configuration:
*ip forward-protocol udp 514*
Regards,
Peter Kingston
Studying for my CCIE
On 6/22/07, louis john <west_coast@inbox.com> wrote:
>
> Hi All,
>
> I am trying to forward the syslog messages received by the serial
> interface of R1 to the syslog server connected to SW2, but I can not see any
> syslog messages on my server.R4 is forwarding the syslog messages to R1,
> that's why I configured the "logging 150.1.1.1" toward R1.
> the condition is to use the ip helper-address, so I can not configure the
> simple logging command toward the server.
>
> shouldn't the command ip helper-address forward the syslog messages to the
> address associated with it? maybe I am not able to do it because the syslog
> is reaching R1 an unicast, and the rule it must be all IP levle broadcast
> for the ip helper-address command to start work !
>
> if this is case then how I will convert the syslog traffic to be broadcast
> then !
>
>
>
>
>
> I will be thankful if you shed light on this issue
>
>
> R4----R1-----SW2---SYSLOG SERVER(192.168.1.101)
>
>
> R4
> logging 150.1.1.1
>
> R1
> inter loopback 0
> ip address 150.1.1.1
>
> interface Serial0
> ip helper-address 192.168.1.101
>
>
> ip forward-protocol udp syslog
>
> SW2
> interface fas1/0/48
> no switchport
> ip add 192.168.1.80 255.255.255.0
> ip broadcast-address 192.168.1.255
>
>
> Note: Reachability is done between all devices
>
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This archive was generated by hypermail 2.1.4 : Sun Jul 01 2007 - 17:24:51 ART