Re: ICMP portnumber

From: nhatphuc (nhatphuc@gmail.com)
Date: Fri Feb 08 2008 - 01:08:33 ARST


I use 1 because udp port 7 is for echo protocol, not icmp.

Phuc

On Feb 6, 2008 10:01 PM, Edouard Zorrilla <ezorrilla@tsf.com.pe> wrote:

> Hello,
>
> When I am supposed to make icmp pass thru the Firewall, should I use :
>
> 1.- The protocol type 1 and then the sub type - echo and echo reply are 0
> and 8 if asked for these ones.
>
> or
>
> 2.- The udp ports stated in : http://www.iana.org/assignments/port-numbers,
>
> Please let me know,
>
> Regards
>
> ----- Original Message -----
> From: "Victor Cappuccio" <Victor.Cappuccio@globalknowledgespain.es>
> To: "itsfortarget iwillgetit" <itsfortarget@gmail.com>; "Cisco
> certification" <ccielab@groupstudy.com>
> Sent: Tuesday, February 05, 2008 3:44 PM
> Subject: RE: ICMP portnumber
>
>
> > Hi,
> >
> > http://www.faqs.org/rfcs/rfc792.html
> >
> > R1(config)#ip access-list extended 101
> > R1(config-ext-nacl)#10 permit icmp any any ?
> > <0-255> ICMP message type
> > administratively-prohibited Administratively prohibited
> > alternate-address Alternate address
> > conversion-error Datagram conversion
> > dod-host-prohibited Host prohibited
> > dod-net-prohibited Net prohibited
> > dscp Match packets with given dscp value
> > echo Echo (ping)
> > echo-reply Echo reply
> > fragments Check non-initial fragments
> > general-parameter-problem Parameter problem
> > host-isolated Host isolated
> > host-precedence-unreachable Host unreachable for precedence
> > host-redirect Host redirect
> > host-tos-redirect Host redirect for TOS
> > host-tos-unreachable Host unreachable for TOS
> > host-unknown Host unknown
> > host-unreachable Host unreachable
> > information-reply Information replies
> > information-request Information requests
> > log Log matches against this entry
> > log-input Log matches against this entry, including
> > input
> >
> > R1(config-ext-nacl)#10 permit icmp any any 1 ?
> > <0-255> ICMP message code
> > dscp Match packets with given dscp value
> > log Log matches against this entry
> > log-input Log matches against this entry, including input interface
> > precedence Match packets with given precedence value
> > reflect Create reflexive access list entry
> > time-range Specify a time-range
> > tos Match packets with given TOS value
> > <cr>
> >
> >
> > thanks,
> > ---
> > Victor Cappuccio.-
> > CCSI #31452
> >
> > Global Knowledge Spain
> >
> > -----Mensaje original-----
> > De: nobody@groupstudy.com en nombre de itsfortarget iwillgetit
> > Enviado el: mar 05/02/2008 9:45
> > Para: Cisco certification
> > Asunto: ICMP portnumber
> >
> > Dear Team,
> >
> > Could please come across the port number used by ICMP packet.
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
> >
> >
> >
> >
> >
> > ___________________________________________________
> > Global Knowledge Network Spain, S.L.U.
> > T: +34 91 425 06 60
> > CIF: B-81366668
> > Direccisn Fiscal: Edificio Indocentro
> > Calle de la Retama 7, 6a planta
> > 28045 - Madrid. Espaqa
> >
> > DESCARGO DE RESPONSABILIDAD:
> > La informacisn contenida en este e-mail es de caracter privilegiado y
> > confidencial, y para el uso exclusivo del receptor del mismo. Cualquier
> > otra
> > persona que no sea la receptora del mensaje no debe distribuir, usar o
> > copiar
> > todo o alguna parte de dicho e-mail sin el consentimiento explicito de
> > Global
> > Knowledge. Si usted ha recibido este e-mail por error debe borrarlo
> > completamente asm como cualquier archivo adjunto y notificar
> > inmediatamente,
> > respondiendo por e-mail, a la persona que lo haya enviado.
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html



This archive was generated by hypermail 2.1.4 : Sat Mar 01 2008 - 16:54:47 ARST