Re: weird problem with ping (I know, shame on me)

Hi, The destination IP is a web server. There are no ACLs blocking user
ranges. We do have ACLs blocking subnets, but if that were in place, I
wouldn't have been able to ping from the switch, using the user's vlan IP as
the source.

I have tried changing the workstation, same results. Tried rebooting the PC,
no change. ARP/MAC entries are good. Unfortunately I can't reboot the switch
because it's a production box.

On Thu, Feb 3, 2011 at 6:45 PM, circusnuts_at_netzero.net <
circusnuts_at_netzero.net> wrote:

> I'm reaching here, but what if you cannot hit this destination address (say
> it's a serial link) because it's from a known IP pool with an ACL that
> blocks user ranges from connecting to it. Or at least that could be the
> case in some of the networks I work with.
>
> Also, did you say that you can source your Ping from the gateway (user Vlan
> SVI) where that PC lives (& it's successful)? Have you tried changing the
> workstation IP & does this appear to be a range to range or specific IP to
> specific IP issue? Have you cleared your ARP & MAC entry in the 6500 (not
> that that makes any more sense than kicking the switch)?
>
> ---------- Original Message ----------
> From: Jersey Guy <guy.jersey_at_gmail.com>
> To: Raghav Bhargava <raghavbhargava12_at_gmail.com>
> Cc: Cisco certification <ccielab_at_groupstudy.com>
> Subject: Re: weird problem with ping (I know, shame on me)
> Date: Thu, 3 Feb 2011 18:16:42 -0500
>
> From the user's machine I can ping plenty of other IPs including the
> default
> gateway and other IPs many hops away.
>
> On Thu, Feb 3, 2011 at 6:07 PM, Raghav Bhargava
> <raghavbhargava12_at_gmail.com>wrote:
>
> > Did u check the user machine..whether there is a host firewall blocking
> > icmp on his machine..
> >
> > -Raghav
> >
> > On Thu, Feb 3, 2011 at 2:35 PM, Jersey Guy <guy.jersey_at_gmail.com> wrote:
> >
> >> Folks,
> >> I have a 6509 switch with a few user vlans. From the switch I can ping a
> >> certain IP address that sits multiple hops away. From user workstations
> >> that
> >> have this switch as their default gateway, I can't ping the same IP
> >> address.
> >> I've checked the usual stuff - subnet mask, being able to ping the
> default
> >> gateway, being able to ping other IPs, rebooting the darn PC....no
> change.
> >> For clarification, when on the switch, I run extended ping with the
> user's
> >> vlan as the source address. It works fine. Just can't ping from the
> user's
> >> machine! Any pointers/ideas please?!
> >>
> >> TIA
> >>
> >>
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> >
> >
> > --
> > Warm Regards
> > Raghav
>
>
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Received on Tue Feb 08 2011 - 10:52:47 ART