access-list & ports ( TCP /UDP) [7:17374]

2001-08-27 Thread shella kevin
when dealing with access-list we use both TCP & UDP. For example we use tcp 53 or udp 53 for domain. My Q is when & how we know when we should use UDP and when TCP . what is the difference . Thanks Shella K.

Re: access-list & ports ( TCP /UDP) [7:17374]

2001-08-27 Thread Ednilson Rosa
you a help list with the most common UDP and TCP ports you may use. For a comprehensive list search on Cisco's Website. Regards, Ednilson Rosa - Original Message - From: "shella kevin" To: Sent: Monday, August 27, 2001 8:04 AM Subject: access-list & ports ( TCP /UD

Re: access-list & ports ( TCP /UDP) [7:17374]

2001-08-27 Thread sam sneed
You should understand which applications use which ports and why they use them if you are a network administrator and to implement any type of filtering. You should check out which network applications you use (SMTP, DNS,.. etc ) and look them all up in the rfc to see how they work. Making the ac

Re: access-list & ports ( TCP /UDP) [7:17374]

2001-08-27 Thread Priscilla Oppenheimer
hella kevin" >To: >Sent: Monday, August 27, 2001 8:04 AM >Subject: access-list & ports ( TCP /UDP) [7:17374] > > >when dealing with access-list we use both TCP & UDP. For example we use >tcp 53 or udp 53 for domain. > >My Q is when & how we know when we s

Re: access-list & ports ( TCP /UDP) [7:17374]

2001-08-27 Thread Brian Whalen
I use http://www.iana.org/assignments/port-numbers for finding out about port numbers. Re the dns topic below, udp is fine for a company that does not have its own dns servers and only makes queries. TCP is used for zone transfers. I believe that in newer versions of bind, random hi port number

Re: access-list & ports ( TCP /UDP) [7:17374]

2001-08-27 Thread Ednilson Rosa
e - >From: "shella kevin" >To: >Sent: Monday, August 27, 2001 8:04 AM >Subject: access-list & ports ( TCP /UDP) [7:17374] > > >when dealing with access-list we use both TCP & UDP. For example we use >tcp 53 or udp 53 for domain. > >My Q is when &a

Re: access-list & ports ( TCP /UDP) [7:17374]

2001-08-27 Thread Ednilson Rosa
The problem with this list is that every application seem to use both UDP and TCP, which is not always true. Ednilson Rosa - Original Message - From: "Brian Whalen" To: Sent: Monday, August 27, 2001 5:03 PM Subject: Re: access-list & ports ( TCP /UDP) [7:17374

Re: access-list & ports ( TCP /UDP) [7:17374]

2001-08-27 Thread Carroll Kong
uot;Brian Whalen" >To: >Sent: Monday, August 27, 2001 5:03 PM >Subject: Re: access-list & ports ( TCP /UDP) [7:17374] > > >I use http://www.iana.org/assignments/port-numbers for finding out about >port numbers. Re the dns topic below, udp is fine for a company that does

Re: access-list & ports ( TCP /UDP) [7:17374]

2001-08-27 Thread Brian Whalen
m to use both UDP > and TCP, which is not always true. > > Ednilson Rosa > > - Original Message - > From: "Brian Whalen" > To: > Sent: Monday, August 27, 2001 5:03 PM > Subject: Re: access-list & ports ( TCP /UDP) [7:17374] > > > I use htt

Re: access-list & ports ( TCP /UDP) [7:17374]

2001-08-28 Thread Howard C. Berkowitz
s that every application seem to use both UDP >> and TCP, which is not always true. >> >> Ednilson Rosa >> >> - Original Message - >> From: "Brian Whalen" >> To: >> Sent: Monday, August 27, 2001 5:03 PM >> Subject: Re: access-list &

Re: access-list & ports ( TCP /UDP) [7:17374]

2001-08-28 Thread Priscilla Oppenheimer
The problem with this list is that every application seem to use both UDP > >> and TCP, which is not always true. > >> > >> Ednilson Rosa > >> > >> - Original Message - > >> From: "Brian Whalen" > >> To: > >>