用 strongSwan 做了个 VPN, 但是 iptables 不知道如何设置

V2EX = way to explore

V2EX 是一个关于分享和探索的地方

现在注册

已注册用户请登录

V2EX 提问指南

这是一个创建于 3639 天前的主题，其中的信息可能已经有所发展或是发生改变。

现在的现象是: 我可以连上VPN, 但是无论开网页还是应用都链接超时
但是如果我放开所有的iptables限制, 访问完全没有问题, 速度也比较快.
下面是我的iptables规则, 希望懂得人能指导一下链接超时的原因.

sudo iptables --list
Chain INPUT (policy ACCEPT)
target prot opt source destination

ACCEPT all -- localhost localhost

ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT tcp -- anywhere anywhere tcp dpt:33004
ACCEPT tcp -- anywhere anywhere tcp dpt:http
ACCEPT udp -- anywhere anywhere udp dpt:isakmp
ACCEPT udp -- anywhere anywhere udp dpt:4500

Chain FORWARD (policy ACCEPT)
target prot opt source destination

REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
ACCEPT all -- 10.0.0.0/24 anywhere

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

ACCEPT all -- anywhere anywhere

anywhere

udp

iptables

7 条回复 • 2015-01-05 16:01:44 +08:00

chon

2015-01-05 13:55:50 +08:00

什么叫做「放开所有的iptables限制」？

yywudi

2015-01-05 13:58:41 +08:00

Chain FORWARD (policy ACCEPT)
target prot opt source destination
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
ACCEPT all -- 10.0.0.0/24 anywhere

REJECT放在ACCEPT的下一行

anubiskong

2015-01-05 14:01:12 +08:00

@chon 清空iptables的所有规则

anubiskong

2015-01-05 14:17:56 +08:00

@yywudi 换成这样了, 还是不行

ACCEPT all -- localhost localhost
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT tcp -- anywhere anywhere tcp dpt:33004
ACCEPT tcp -- anywhere anywhere tcp dpt:http
ACCEPT udp -- anywhere anywhere udp dpt:isakmp
ACCEPT udp -- anywhere anywhere udp dpt:4500

Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- 10.0.0.0/24 anywhere
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere

bellchu

2015-01-05 15:31:59 +08:00 via iPad

MASQUERADE 都没有你用ip route转发的？

bellchu

2015-01-05 15:35:53 +08:00 via iPad

Iptables -nL -t nat
看看

anubiskong

2015-01-05 16:01:44 +08:00

@bellchu

Chain PREROUTING (policy ACCEPT)
target prot opt source destination

Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

Chain POSTROUTING (policy ACCEPT)
target prot opt source destination
MASQUERADE all -- 10.0.0.0/24 0.0.0.0/0
MASQUERADE all -- 10.0.0.0/24 0.0.0.0/0
MASQUERADE all -- 10.0.0.0/24 0.0.0.0/0
MASQUERADE all -- 10.0.0.0/24 0.0.0.0/0