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RE: Frame Relay TCP Header Compression posted 11/14/2003
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If tcp header-compression was enabled only from one side but not the other, will the connestion still work ?

How about payload compression - if enabled from one side but not the other - ?


From: "Scott Morris" <swm@xxxxxxxxxx>


Your connection seemed to work just fine!


>RouterB#telnet 192.168.1.1 Trying 192.168.1.1 ... Open <<<-----

>Password required, but none set

>[Connection to 192.168.1.1 closed by foreign host]

However, you need to set a password under the VTY ports in order to be
allowed to telnet in!  :)

HTH,


Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, CISSP, JNCIS, et al. IPExpert CCIE Program Manager IPExpert Sr. Technical Instructor swm@xxxxxxxxxx/smorris@xxxxxxxxxxxx http://www.ipexpert.net


-----Original Message----- From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of William Chen Sent: Friday, November 14, 2003 3:44 AM To: ccielab@xxxxxxxxxxxxxx Subject: Frame Relay TCP Header Compression


Dear group,


   For frame-relay tcp header compression, if I turn on the header
compression on the an interface, all the PVC will inherit the
compression. The command "frame-relay map ip addr dlci nocompress" is
suppose to disable this inheritance. Therefore, I try if one end of
Frame Relay allow this inheritance, but another end disable the
inheritance, then TCP connection will be failed.

RouterA:
interface Serial0/0
 ip address 192.168.1.1 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 192.168.1.2 204 broadcast nocompress  frame-relay ip
tcp header-compression ! RouterA#sh frame-relay map Serial0/0 (up): ip
192.168.1.2 dlci 204(0xCC,0x30C0), static,
              broadcast,
              CISCO, status defined, active

RouterB:
interface Serial0/0
 ip address 192.168.1.2 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 192.168.1.1 402 broadcast nocompress  frame-relay ip
tcp header-compression ! RouterB#sh frame map Serial0/0 (up): ip
192.168.1.1 dlci 402(0x192,0x6420), static,
              broadcast,
              CISCO, status defined, active
              TCP/IP Header Compression (inherited), connections: 256

RouterB#p 192.168.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!! Success rate is 100 percent (5/5), round-trip min/avg/max =
56/57/60 ms RouterB#telnet 192.168.1.1 Trying 192.168.1.1 ... Open


Password required, but none set


[Connection to 192.168.1.1 closed by foreign host]

Anyone know why?

Best Regard,
William Chen

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