Hi all,
Just like to enquire some issue regarding Catalyst 2924
I have a pretty old Catalyst 2924 (C2900XL-H-M) switch in my office running
IOS Version 11.2(8)SA3, however, it seems that the switch is constantly
sending out broadcast messages as captured by tcpdump.
17:14:51.053952 0:10:b:3c:
ailto:[EMAIL PROTECTED]] On Behalf Of
Tay Chee Yong
Sent: 01 February 2002 10:16
To: [EMAIL PROTECTED]
Subject: Cat2924 sending out broadcast message [7:34024]
Hi all,
Just like to enquire some issue regarding Catalyst 2924
I have a pretty old Catalyst 2924 (C2900XL-H-M) switch in my office
running
Version 4:
HLEN = 5: Normal IP Header (5 losts of 32 bits)
Service Type 0: Normal.
Total Length = 328 bytes. Thus data length = 308
bytes.
Identification = 51514. Flags & Offset = 0.
TTL = 255.
Protocol 17: UDP.
Header checksum 0xf16a.
Source IP : 0.0.0.0
Dest IP : 255.255.255.255 b/cast
Src Port
It's BOOTP (DHCP). It says so in the tcpdumb output.
Also the IP length of 0x0148 is typical for a DHCP Request. (328 bytes in
decimal).
Also see the 0xFF11? That's TTL = 255, and next layer = UDP.
The other clue is that the IP source address is 00 00 00 00 and the IP
destination address is F
On Behalf Of
>Tay Chee Yong
>Sent: 01 February 2002 10:16
>To: [EMAIL PROTECTED]
>Subject: Cat2924 sending out broadcast message [7:34024]
>
>Hi all,
>
>Just like to enquire some issue regarding Catalyst 2924
>
>I have a pretty old Catalyst 2924 (C2900XL-H-M) switch in my
I'm impressed. Wouldn't it be cool if that skill were required for CCIE?
;-) It's certainly more useful than being able to hand decode Token Ring
RIFs?
Priscilla
At 07:02 AM 2/1/02, Phil Barker wrote:
>Version 4:
>HLEN = 5: Normal IP Header (5 losts of 32 bits)
>Service Type 0: Normal.
>Total L
Hi,
The tcpdump station was initially attached to Vlan 1, sniffing those bootp
packets. But when the tcpdump station is moved to Vlan 4, and after I had
shutdown Vlan 1, the problem is resolved.
Anyway to prevent this messages?? In the first place, it shouldn't be
there, since there are no DH
TECTED]]
> Sent: Friday, February 01, 2002 8:52 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Cat2924 sending out broadcast message [7:34024]
>
>
> Hi,
>
> The tcpdump station was initially attached to Vlan 1,
> sniffing those bootp
> packets. But when the tcpdump statio
--- Priscilla Oppenheimer wrote:
> I'm impressed. Wouldn't it be cool if that skill
> were required for CCIE?
I only wish !!! It would make my life a lot easier.
> ;-) It's certainly more useful than being able to
> hand decode Token Ring
> RIFs?
TRing RIF decodes are another of my pet hates.
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