[c-nsp] 4948 management port VS vty access-group

Saxon Jones saxon.jones at gmail.com
Thu May 20 10:36:49 EDT 2010


Have you tried adding the vrf-also switch to your access-class
statement? Something like:

line vty 0 4
 access-class 10 in vrf-also

I'm not sure if this is available on the 4500, but it works on all the
gear I have.

-saxon

On 20 May 2010 07:51, Nemeth Laszlo <csirek at cooler.hu> wrote:
> Hi All,
>
> I use a C4948 switch with cat4500-entservicesk9-mz.122-53.SG1 IOS.
>
> I try to use the MGMT ethernet port. The config is:
>
>  interface FastEthernet1
>  ip vrf forwarding mgmtVrf
>  ip address 192.168.2.10 255.255.255.0
>  speed auto
>  duplex auto
>
> If I telnet to the switch from 192.168.2.1 via the MGMT port without
> access-group filter on the VTY, the telnet is working.
>
>  # telnet 192.168.2.10
>  Trying 192.168.2.10...
>  Connected to 192.168.2.10.
>  Escape character is '^]'.
>
>  User Access Verification
>
>  Username:
>
>
> But if i put a filter to the VTY (now i try a simple "access-list 10 permit
> any" ) the telnet doesn't work thru the MGMT port.
>
> VTY config:
>
>  line vty 0 4
>  access-class 10 in
>  exec-timeout 0 0
>  login local
>
> Telnet output:
>
>  # telnet 192.168.2.10
>  Trying 192.168.2.10...
>  telnet: Unable to connect to remote host: Connection refused
>
> I tried standard and extended ACL too.
> If I logging an extended ACL (permit ip any any log) output i see it:
>
>  *May 20 08:08:15 MET-DST: %SEC-6-IPACCESSLOGP: list 100 permitted tcp
> 192.168.2.1(47611) -> 0.0.0.0(23), 1 packet
>
> But the connection is refused.
>
> Do anybody have any idea, why doesn't work the telnet thru the MGMT if i use
> ACL on the VTY lines? May be SW bug?
>
> Thanks!
>
> Laszlo
>
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