I have struggled several days to try to set up the transparent proxy
between IOS and Squid using WCCP. Since I'm running Squid, 2.5.STABLE13,
on RHEL 4 with kernel 2.6.9-34.0.2.ELsmp #1, which according to my
reading the ip_gre module should contain WCCP v1/2 support, I decide to
use GRE tunnel mod
ons 2006-08-02 klockan 16:27 -0700 skrev Arnold Wang:
> Is my reading on the trace correct? If so, does is really mean the
> ip_gre module comes with RHEL 4 doesn't support WCCP? Is there a
> way/command to verify whether the ip_gre module in my system supports
> WCCP?
Have you created the wccp g
nopmtudisc
Thanks for the reply.
-Original Message-
From: Henrik Nordstrom [mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 02, 2006 6:32 PM
To: Arnold Wang
Cc: squid-users@squid-cache.org
Subject: Re: [squid-users] Squid + RHEL4 + ip_gre issue
ons 2006-08-02 klockan 16:27 -0700 skrev
ons 2006-08-02 klockan 22:22 -0700 skrev Arnold Wang:
> The configuration in the RHEL box:
> [EMAIL PROTECTED] ~]# ip tunnel show
> gre0: gre/ip remote any local any ttl inherit nopmtudisc
> wccp0: gre/ip remote 10.17.2.65 local 10.17.2.146 dev eth0 ttl
> inherit
> sit0: ipv6/ip remote a
[EMAIL PROTECTED] tmp]# ip addr show dev wccp0
4: [EMAIL PROTECTED]: mtu 1476 qdisc noqueue
link/gre 10.17.2.146 peer 10.17.2.65
inet 192.168.1.6/31 scope global wccp0
Thanks again for your kind helps.
On Thu, 2006-08-03 at 08:44 +0200, Henrik Nordstrom wrote:
> ons 2006-08-02 klockan 22
Looks fine.
And "cat /proc/sys/net/ipv4/conf/wccp0/rp_filter"?
(should be 0)
Regards
Henrik
tor 2006-08-03 klockan 10:34 -0700 skrev Arnold Wang:
> [EMAIL PROTECTED] tmp]# ip addr show dev wccp0
> 4: [EMAIL PROTECTED]: mtu 1476 qdisc noqueue
> link/gre 10.17.2.146 peer 10.17.2.65
> ine
Yes, I did change those system settings mentioned in FAQ, including
enabling routing, etc.
[EMAIL PROTECTED] awang]
$cat /proc/sys/net/ipv4/conf/wccp0/rp_filter
0
On Thu, 2006-08-03 at 20:06 +0200, Henrik Nordstrom wrote:
> Looks fine.
>
> And "cat /proc/sys/net/ipv4/conf/wccp0/rp_filter"?
>
If you run tcpdump -n -i wccp0, do you see any traffic?
Regards
Henrik
tor 2006-08-03 klockan 12:03 -0700 skrev Arnold Wang:
> Yes, I did change those system settings mentioned in FAQ, including
> enabling routing, etc.
>
> [EMAIL PROTECTED] awang]
> $cat /proc/sys/net/ipv4/conf/wccp0/rp_filter
Yes. I included in my original post. I include my read on it as well.
- begin of the trace --
1 0.00192.168.1.6 192.168.1.7 WCCP
1.0 Here I am
-> Squid tries to register with the router.
2 0.000960192.168.1.7 192.168.1.6
tor 2006-08-03 klockan 13:33 -0700 skrev Arnold Wang:
> Yes. I included in my original post.
That traffic was on eth0, not on wccp0.
> > If you run tcpdump -n -i wccp0, do you see any traffic?
Regards
Henrik
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Description: Detta är en digitalt signerad meddelandedel
I'm sorry I forgot it's from the eth0 packet. I do see traffics on wccp0
as well.
[EMAIL PROTECTED] local]# tethereal -i wccp0
tethereal: WARNING: arptype 778 not supported by libpcap - falling back
to cooked socket.
Capturing on wccp0
0.00 192.168.1.6 -> 192.168.1.7 WCCP 1.0 Here I am
tor 2006-08-03 klockan 14:40 -0700 skrev Arnold Wang:
> I'm sorry I forgot it's from the eth0 packet. I do see traffics on wccp0
> as well.
>
> [EMAIL PROTECTED] local]# tethereal -i wccp0
> tethereal: WARNING: arptype 778 not supported by libpcap - falling back
> to cooked socket.
> Capturing on
squid-cache.org
Subject: RE: [squid-users] Squid + RHEL4 + ip_gre issue
tor 2006-08-03 klockan 14:40 -0700 skrev Arnold Wang:
> I'm sorry I forgot it's from the eth0 packet. I do see traffics on
wccp0
> as well.
>
> [EMAIL PROTECTED] local]# tethereal -i wccp0
> tetherea
On Thu, 2006-08-03 at 17:25 -0700, Arnold Wang wrote:
> 1. Can you explain to me your concern on the WCCP chat you saw on wccp0
> interface? I thought they're belong there.
The WCCP control traffic should go over the IP network, not encapsulated
in GRE.
The rest looks fine (assuming IP addresses
Thanks for the response. See my comments below.
-Original Message-
From: Henrik Nordstrom [mailto:[EMAIL PROTECTED]
Sent: Friday, August 04, 2006 4:57 AM
To: Arnold Wang
Cc: squid-users@squid-cache.org
Subject: RE: [squid-users] Squid + RHEL4 + ip_gre issue
On Thu, 2006-08-03 at 17:25
fre 2006-08-04 klockan 09:29 -0700 skrev Arnold Wang:
> This reminds me the odd thing I ignored earlier which is I
> have to define the dummy IP of the router GRE interface as the
> wccp_router in the Squid for it to register with router properly.
What GRE interface on the router? Have you create
ook hard enough.
Thanks again for your helps. They're very helpful.
-Original Message-
From: Henrik Nordstrom [mailto:[EMAIL PROTECTED]
Sent: Friday, August 04, 2006 9:57 AM
To: Arnold Wang
Cc: squid-users@squid-cache.org
Subject: RE: [squid-users] Squid + RHEL4 + ip_gre issue
fre 2006
fre 2006-08-04 klockan 10:32 -0700 skrev Arnold Wang:
> I did install the kernel-devel package from Redhat and tried to look for
> the ip_gre.c file and didn't find it. I guess I didn't look hard enough.
> Thanks again for your helps. They're very helpful.
The kernel source is in the source rpm (
I thought RedHat changed their kernel source distribution package.
BTW, just to confirm, I don't need any GRE configuration on the router
side at all, is this correct?
Do I have to specify the wccp_ip incoming/outgoing address for Squid? It
seems I having trouble to have Squid registering with the
That is the problem. mismatched IP addresses between the router and
Squid.
There're multiple IPs in the router and it picks 204.146.97.x as its
WCCP IP and it seems no way to modify it, I have a case opened now with
Cisco to confirm. The Squid has 10.17.2.x IP.
I just added another interface in the
fre 2006-08-04 klockan 11:12 -0700 skrev Arnold Wang:
> I thought RedHat changed their kernel source distribution package.
They don't distribute the kernel source as a binary rpm any longer. Only
as a source rpm just like how it's done for all other rpms.
> BTW, just to confirm, I don't need any
e in Linux to achieve that as well.
-Original Message-
From: Henrik Nordstrom [mailto:[EMAIL PROTECTED]
Sent: Friday, August 04, 2006 2:36 PM
To: Arnold Wang
Cc: squid-users@squid-cache.org
Subject: RE: [squid-users] Squid + RHEL4 + ip_gre issue
fre 2006-08-04 klockan 11:12 -0700 skrev A
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