Re: Changing TTL of incoming packets?


"Pavel A." <pavel_a@xxxxxxxxxxxxxxx> wrote in message news:uNk4ulW6FHA.2036@xxxxxxxxxxxxxxxxxxxxxxx
"Angel Tsankov" <fn42551@xxxxxxxxxxxxxxxx> wrote in message news:uq4cdJW6FHA.252@xxxxxxxxxxxxxxxxxxxxxxx
Well, let's concentrate on the gateway case. When the gateway receives a packet (from the Internet) it usually has to forward it to the host that's waiting for it. Unfortunately, if the TTL is 1 the gateway will drop the packet and the host will get nothing. Can I change the TTL of packets from 1 to, say, 2 in order to avoid this problem? 

Depends on who are you. If you are (in) the gateway, you can.

--PA

Yes, I am in the gateway. How do I do it? 

.

Relevant Pages

  • Re: It is a astonishing circumstance about trace route....
    ... >and the TraceRoute didn't stop when ICMP packet arrive at destination. ... the windoze version of traceroute uses ping. ... same host you reported the problem with, as this _is_ a dynamic address. ... TTL of zero. ...
    (comp.os.linux.networking)
  • FW-1 gateway sends ICMP packets
    ... I have an issue with a FW-1 gateway sending ICMP 'TTL exceeded' ... the firewall gateway is not supposed to send or relay ICMP 'TTL ... consider forging the following packet from Internet: ...
    (comp.security.firewalls)
  • FW-1 gateway sends ICMP packets
    ... I have an issue with a FW-1 gateway sending ICMP 'TTL exceeded' ... the firewall gateway is not supposed to send or relay ICMP 'TTL ... consider forging the following packet from Internet: ...
    (comp.security.firewalls)
  • [Tool] - Nat Probe
    ... and detect all the host that allow it. ... When we use a Gateway, we send the packets with IP dest of the target, ... but the dest mac on the ethernet is the mac at the Gateway. ... If we send a packet to the diferents macs in the lan, ...
    (Pen-Test)
  • Re: Changing TTL of incoming packets?
    ... if the TTL is 1 the gateway will drop the packet and the host will get ... Can I change the TTL of packets from 1 to, say, 2 in order to avoid this problem? ... If you are the gateway, ...
    (microsoft.public.win32.programmer.networks)